# OneDrive CF Worker 加速


:::caution 提示

由于 CloudFlare 相关策略，不再建议使用其相关产品加速 Microsoft、GitHub 以及 Docker 等网站，以免被 CF 封号！如被封号责任自负。
:::

:::info 提示
使用 CF 后下载速度不一定比原来快，这个自行测试。一般来说世纪互联版无需使用此方式。
:::

## 登录/注册账号

https://dash.cloudflare.com/login

## 配置 Cloudflare Workers

### 初次使用入口

初次注册会显示如下页面:

![image.png](/img/2021/04/10/c53465c6da270.png)

![image.png](/img/2021/04/10/71bacabf1450a.png)

![image.png](/img/2021/04/10/d20cebcea8f67.png)

![image.png](/img/2021/04/10/6cef8b026b14c.png)

激活后，按照下方 `非初次使用入口` 继续操作。

### 非初次使用入口

![image.png](/img/2021/04/10/5915cf2b4af8e.png)

![image.png](/img/2021/04/10/cb7c1157f7334.png)


### Workers 代码修改

#### 方式一（仅支持单线程下载）
![image.png](/img/2021/04/10/79d49c9b2ddf6.png)

```javascript showLineNumbers {6,13}
addEventListener("fetch",event => {
    let url = new URL(event.request.url);
    // 随便去 "OneDrive 里找个文件下载" 或 "先不写反代域名绑定 OneDrive 到 ZFile，再找个文件下载"，去浏览器下载记录中找到下载链接，将域名部分写入到这里，不带协议头
    // 如 https://xxx-my.sharepoint.com/personal/xxx_xxx_onmicrosoft_com/_layouts/15/download.aspx?UniqueId=xxx&SourceUrl=xxx
    // 则填写 xxx-my.sharepoint.com
    url.hostname ="youdomain.com";

    let request = new Request(url,event.request);
    event.respondWith(
        fetch(request,{
            headers:{
                 // 和上面的域名对应，只是在前面加上了 https://, 如 https://xxx-my.sharepoint.com
                'Referer':'https://youdomain.com/',
                'User-Agent':'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.100 Safari/537.36'
            }
        })
    )
});
```

#### 方式二（支持多线程下载）

:::tip
此方法为 2021.09.18 新增，**支持多线程下载**，原作者链接为：https://blog.bbimax.com/archives/92
:::

```javascript showLineNumbers {4,7}
    // 随便去 "OneDrive 里找个文件下载" 或 "先不写反代域名绑定 OneDrive 到 ZFile，再找个文件下载"，去浏览器下载记录中找到下载链接，将域名部分写入到这里，不带协议头
// 如 https:/abc-my.sharepoint.com/personal/xxx_xxx_onmicrosoft_com/_layouts/15/download.aspx?UniqueId=xxx&SourceUrl=xxx
// 则填写 abc-my.sharepoint.com
const upstream = '*-my.sharepoint.com'

// 一般情况和上面的一样，只是这个是移动端下载使用的域名.
const upstream_mobile = '*-my.sharepoint.com'

// 下面的配置都不用动
const upstream_path = '/'

// 禁止访问的国家代码，可参考：https://wenku.baidu.com/aggs/bad9979951e79b89680226aa.html
const blocked_region = ['KP', 'SY', 'PK', 'CU']

// 禁止访问的 IP 地址
const blocked_ip_address = ['0.0.0.0', '127.0.0.1']

const https = true

const disable_cache = false

const replace_dict = {
    '$upstream': '$custom_domain',
    '//sunpma.com': ''
}

addEventListener('fetch', event => {
    event.respondWith(fetchAndApply(event.request));
})

async function fetchAndApply(request) {
    const region = request.headers.get('cf-ipcountry').toUpperCase();
    const ip_address = request.headers.get('cf-connecting-ip');
    const user_agent = request.headers.get('user-agent');

    let response = null;
    let url = new URL(request.url);
    let url_hostname = url.hostname;

    if (https == true) {
        url.protocol = 'https:';
    } else {
        url.protocol = 'http:';
    }

    if (await device_status(user_agent)) {
        var upstream_domain = upstream;
    } else {
        var upstream_domain = upstream_mobile;
    }

    url.host = upstream_domain;
    if (url.pathname == '/') {
        url.pathname = upstream_path;
    } else {
        url.pathname = upstream_path + url.pathname;
    }

    if (blocked_region.includes(region)) {
        response = new Response('Access denied: WorkersProxy is not available in your region yet.', {
            status: 403
        });
    } else if (blocked_ip_address.includes(ip_address)) {
        response = new Response('Access denied: Your IP address is blocked by WorkersProxy.', {
            status: 403
        });
    } else {
        let method = request.method;
        let request_headers = request.headers;
        let new_request_headers = new Headers(request_headers);

        new_request_headers.set('Host', upstream_domain);
        new_request_headers.set('Referer', url.protocol + '//' + url_hostname);

        let original_response = await fetch(url.href, {
            method: method,
            headers: new_request_headers
        })

        connection_upgrade = new_request_headers.get("Upgrade");
        if (connection_upgrade && connection_upgrade.toLowerCase() == "websocket") {
            return original_response;
        }

        let original_response_clone = original_response.clone();
        let original_text = null;
        let response_headers = original_response.headers;
        let new_response_headers = new Headers(response_headers);
        let status = original_response.status;

        if (disable_cache) {
            new_response_headers.set('Cache-Control', 'no-store');
        }

        new_response_headers.set('access-control-allow-origin', '*');
        new_response_headers.set('access-control-allow-credentials', true);
        new_response_headers.delete('content-security-policy');
        new_response_headers.delete('content-security-policy-report-only');
        new_response_headers.delete('clear-site-data');

        if (new_response_headers.get("x-pjax-url")) {
            new_response_headers.set("x-pjax-url", response_headers.get("x-pjax-url").replace("//" + upstream_domain, "//" + url_hostname));
        }

        const content_type = new_response_headers.get('content-type');
        if (content_type != null && content_type.includes('text/html') && content_type.includes('UTF-8')) {
            original_text = await replace_response_text(original_response_clone, upstream_domain, url_hostname);
        } else {
            original_text = original_response_clone.body
        }

        response = new Response(original_text, {
            status,
            headers: new_response_headers
        })
    }
    return response;
}

async function replace_response_text(response, upstream_domain, host_name) {
    let text = await response.text()

    var i, j;
    for (i in replace_dict) {
        j = replace_dict[i]
        if (i == '$upstream') {
            i = upstream_domain
        } else if (i == '$custom_domain') {
            i = host_name
        }

        if (j == '$upstream') {
            j = upstream_domain
        } else if (j == '$custom_domain') {
            j = host_name
        }

        let re = new RegExp(i, 'g')
        text = text.replace(re, j);
    }
    return text;
}


async function device_status(user_agent_info) {
    var agents = ["Android", "iPhone", "SymbianOS", "Windows Phone", "iPad", "iPod"];
    var flag = true;
    for (var v = 0; v < agents.length; v++) {
        if (user_agent_info.indexOf(agents[v]) > 0) {
            flag = false;
            break;
        }
    }
    return flag;
}
```


## 添加到 ZFILE

![image.png](/img/2022/08/16/AVl7Nr.png)

## 测试下载

然后去 ZFile 首页下载文件，查看下载域名就可以看到已经变成了 Cloudflare Workers 的域名了。

:::info 提示
CF 分配的域名可能是被墙的，导致无法下载，可在 Cloudflare Workers 中绑定自定义域名解决。
:::